In 1944, ICI commissioned a film from the Realist Film Unit whose chief cameraman was Suschitzky, which documented the development and manufacture of penicillin in Britain. It showed scenes including a re-enactment of Sir Alexander Fleming's discovery of penicillin, the treatment of a wounded soldier, and Sir Howard Florey, Sir Ernst Chain and Norman Heatley at work on the chemistry of penicillin in their Oxford laboratory. Sir Ernst Chain is shown here with fellow scientist Professor Robert Robinson in his office at Magdalen College, Oxford.